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Site Proposals

Welcome to Codidact Meta!

Codidact Meta is the meta-discussion site for the Codidact community network and the Codidact software. Whether you have bug reports or feature requests, support questions or rule discussions that touch the whole network – this is the site for you.

# Need a mathematics Q&A site

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Update: launched.

It's been previously suggested that Codidact should have all math, coding, and software Q&A sites. There is already a catch-all Q&A site for coding/software, so perhaps it's time to get a math site too.

Mathematicians tend to be on the cutting edge of new internet technologies. We were among the first adopters of Google+ (RIP) and currently have a massive community on SE. We are also among the central driving forces of the Open Access movement in academia, demonstrating a cultural affinity for the ideals behind FOSS and Creative Commons.

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Right now we don't have a good way of identifying people who would help build a new community, so let's do this: if you are interested in helping to build a math site, please leave a comment describing your level of interest (casual visitor, enthusiast, expert in this subtopic within the site's scope, something else?). I'll edit them into the post later.

Interest expressed so far:

• I’d be happy to do what I can to launch a community. I’m a 13k rep on m.se an 1k on MO. I might categorize myself as somewhere between enthusiast and expert (my background is in algebraic topology and category theory but for the most part I’ve been more comfortable answering collegiate level questions — ziggurism

• I would participate casually, both asking and answering (my degree is in math) but not often. — msh210

• I'd be somewhere in between casual user and enthusiast, tending more towards the former. — user53100

• I'd be interested in participating as well. — DonielF

• I'd be interested in participating aswell, however my knowledge is primarily limited to probability and statistics. — Zerotime

• As I commented on the earlier post, I'd be interested in participating. My main interest is enumerative combinatorics, although since one of my main replacements for SE as a source of intellectual stimulation was ProjectEuler I've also been learning a lot of number theory this year. — Peter Taylor

• I would participate. I'd probably describe myself as an enthusiast. I'm an undergraduate senior Math and Physics major, so I would enjoy answering undergraduate questions, but I couldn't do much beyond that. If the community were extended to include applications of mathematics, I could also answer questions about the mathematics of physics. — JoshuaTS

• I am an active SE user (20K on MathOverflow and moderator on CSTheory) but I think having alternatives is good. I would like to contribute here. Bjørn Kjos-Hanssen

• I'd love joining if you create it. I'm a casual visitor as per your scale. — 8063♦

• I was (am) a 20K+ user on Math.SE. My main focuses are logic, type theory, and category theory, but I could and would be open to contributing answers to a broad range of topics. — Derek Elkins

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Needed: a logo.

Thanks to everyone who's responded to the other answer about prospective participants. We plan to move forward with this community.

Right now the person who's been designing our logos is very busy with other things, so to try to remove barriers, I'm here to ask for your help. We're looking for ideas/mockups; someone else will produce the final version.

As you can see from other communities, our logos are horizontal (around 1:3) and include both the name and some graphical element that represents the community (transistor on EE, menorah on Judaism, frying pan on Cooking, etc). Logos need to not be too complex; they need to work on phones as well as big monitors. (The original draft for Languages and Linguistics included a lot more alphabets.)

Within those constraints, what says "mathematics" to you and to the people you hope to attract? And is there anything else we should know, like "avoid such-and-such because it's really cliche" or "these colors have particular associations" etc?

Suggestion #1

Edit by Sigma (sorry but I can't put a logo in the comments): Something like this? I'm worried it might be a little long relative to the height.

Here's a version from Peter Taylor in the comments:

Suggestion #2

Someone proposed the following to me privately, so I'm passing it along (with permission). The explanation is that the formula is considered to be the most beautiful one in mathematics because it has the basic math elements:

There is a suggestion in a comment to just use the "e ^ i pi" part of the formula as the logo, which still captures 3/5 of the formula's mathematical beauty, along with the word.1 There's another suggestion to just use pi.

Another variation (proposed by Sigma):

Suggestion #3

Suggested in a comment:

Perhaps clichéd, but for the logo I suggest $P\lor\neg P$, i.e. P∨¬P, a reference to both the law of the excluded middle as well as the P vs NP problem. — user53100

Suggestion #4

Half-joking-half-serious suggestion: Use the standard calculator logo - a 2x2 grid of + - x = — Moshi

$\left[\begin{smallmatrix}+&-\\times&=\end{smallmatrix}\right]\mathbb{M}\text{athematics}$

Additional suggestions in this answer. Don't worry about voting; with proposals being combined like this, voting doesn't mean much anyway. Constructive feedback matters. Somebody will take all this input and produce a logo.

1. I'm learning all kinds of things from this thread. Yesterday I learned that the EE logo is a transistor, and today I learned about Euler's formula. Never stop learning!

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## Scope

Please edit this; I am not a mathematician and am deriving this from activity on this proposal.

Scope for this site would include:

• all branches of theoretical and applied math: algebra, category theory, arithmetic and number theory, combinatorics, topology, measure theory and probability, calculus and analysis, statistics, complexity theory, automata theory, etc.
• closely-adjacent sciences where the central question is about the math (e.g. "help me with this calculus to solve this physics problem" should be fine, but not "which equation should I use for this physics problem")
• math tools (e.g. software packages) if the question is about the math (e.g. "what's the difference between these two R packages' implementations of Student's t test" and not "what's the difference between these two R packages' implementations of text justification")
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Sample question set A:

1. A box of mass 40.0 kg and measuring 1.0m on all edges is placed in a pool of water. At what depth will the box be perfectly suspended?
2. A current with voltage 1.0V, with respect to the hydrogen standard electrode, is run through 1.0L of water exactly filling an isolated system of fixed volume at 30ºC and standard pressure. How much hydrogen and oxygen gas is produced, assuming all gases are trapped inside the water?
3. A sample human population containing blood of only types A and o is found to have exactly 34% with type o and the rest type A. How many of those with type A can be expected to carry a recessive o allele?

Sample question set B:

1. Why is it that if I put different objects into the same liquid, some float, some sink, and some are suspended?
2. Some chemical reactions can be induced by an electric current. Is there a connection between the current applied and the amount of product from the reaction?
3. I know that if someone has a dominant allele, that is what will be expressed, even if a recessive allele is present as well. Is there a way to predict what percentage of a population with the dominant trait carry the recessive allele?

Question set A, while not discussing mathematics directly, implicitly expects a mathematical answer; indeed, there are specific equations which can handle each of these questions (#1 being Archimedes' Principle, #2 being the Nernst equation, and #3 being the Hardy-Weinberg equation).

Question set B, in contrast, can be answered conceptually without getting into the mathematics. I can explain why these properties are true, or loosely describe what the relationship is, without directly stating the mathematical formulation of how these properties are true or related.

Are either question set in-scope (ignoring for the moment that set A is homework questions)?

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